CFD/CSD耦合计算研究  

Study of Date Exchange Metod for Coupling Computational CFD/CSD

作　　者：徐敏[1] 陈士橹[1] 

机构地区：[1]西北工业大学,西安710072

出　　处：《应用力学学报》2004年第2期33-36,共4页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金 (No.10 2 72 0 90 ) ;国防十五气动预研基金 (No .413 13 0 3 0 8)

摘　　要：基于流体———结构干扰计算中流体和结构网格之间的数据交换方法的研究 ,提出了一种改进的常体积转换法 (CVT) ,即引入面积限制值来保证网格插值的质量。运用该方法对两种常规外形 :机翼和弹体圆柱段进行了插值计算 ,并与无限平板样条法 (IPS)进行了比较和误差评估。认为改进的CVT插值方法能避免原CVT方法可能出现的异常情况 ,且大大提高了插值精度 ,是一种适合用于CFD CSD耦合计算接口界面的插值方法。Based on the study of the exchange of displacement date between fluid and structural meshes in fluid-structure interaction simulation, a method of the improved Constant Volume Transformation (CVT) has been proposed and illustrated in this paper. The quality of interpolated meshes are ensured by introducing an area factor. Interpolating calculations are performed for two conventional configurations: three dimensional wing and missile body. And compared with Infinite Plate Spline (IPS) method and evaluated errors, it is believed that the improved CVT method can avoid abnormal case of primary CVT metod being likely to happen, and the method is more accuracy and efficiency compared with IPS method.

关 键 词：耦合CFD/CSD界面算法 无限平板样条法 常体积转换法 气动弹性 流固耦合计算 

分 类 号：V224[航空宇航科学与技术—飞行器设计]